#include<iostream>
#include<algorithm>
using namespace std;
long long a[1000001],b[1000001];
long long n,sum,maxn;
int main()
{
	cin>>n;
	for(long long i=0;i<n;i++){
		cin>>a[i];
		if(b[a[i]]==0)sum+=5;
		b[a[i]]=1;
	}
	sort(a,a+n);
	sum=sum+10*a[n-1]+n;
	cout<<sum;
	return 0;
 }